Stool



FIG. 1 is a front, right and top perspective view of the stool, showing the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof

FIG. 5 is a rear side elevation view thereof;

FIG. 6 is a front side elevation view thereof; and,

FIG. 7 is a bottom plan view thereof. 

CLAIM The ornamental design for a stool, as shown and described. 